5 out of 5
Classy Caps SL4400 Windsor Solar Post Cap - White
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Product Description
Manufacturer Part Number: SL4400
Features
Materials
Post Sizing
Please measure your posts before purchasing
Our low profile 4"x 4" Windsor Vinyl solar post cap includes four high output surface mount LED's that are hidden from view, but as night falls this one of a kind patented design casts an array of light onto all four walls of the post cap and surrounding area...a truly exceptional style only from Classy Caps Mfg. Will fit over an actual 4"x4" OR 3.5"X3.5" post. (3.5"X3.5" adapter included)
5"x5" adaptor available - sold separately. Model #SL4455
Download our Installation Manual
Features
• High-Performance solar lights - stays lit for up to 10 hours
• Casts a brilliant white light downward onto the outside walls of the post cap and surrounding area
• Lights up automatically every night
• High-output surface mount LED technology
• 3x brighter than standard LEDs
• 1 long-life AA Ni-MH rechargeable battery included
• Manufactured from durable White Vinyl ( PVC) - won't fade or yellow
• Will fit over an actual 4"x4" or 3.5"x3.5" post. (3.5"x3.5" adaptor included)
• Quick and easy Do It Yourself installation.
• 10 Lumens / 4500-5500 Kelvin
• Patent No: 6,581,335 B2
Materials
Manufactured from durable cast aluminum with black powder coated finish
Post Sizing
Please measure your posts before purchasing
| 3.5" x 3.5" | Yes |
| 4" x 4" | Yes |
| 5" x 5" | Adapter Sold Separately |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Product Warranty
Classy Caps products are warranted to be free from defects in workmanship or materials at the time of purchase for a period of one year, (excluding batteries).
Return Policy
Return could only be applied within 36 hours after delivery.
Note
This product is not eligible for coupon code discount, for we've been offering the best price in the market.
Need more information?
Our staff are available to answer any questions you may have about this item
Our staff are available to answer any questions you may have about this item
Customer Reviews
By cowboy
Date: October 27, 2025
5 stars
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Robert Reilly
Date: April 18, 2023
After a long search, these were the best cap lights I found. They perfectly fit the 4x4 post sleeves and reliably light up at night to give the deck a soft glow.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
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